<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        
    </el-breadcrumb>
    <el-card class="box-card">
        <el-row :gutter="20">
            <el-col :span = "10">
                <el-input placeholder="请输入内容"  class="input-with-select" v-model="queryInfo.query" clearable @clear="getUserList">
                    <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                </el-input>
            </el-col>
            <el-col :span = "4">
                <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
            </el-col>
        </el-row>
        <!-- 用户列表区 -->
        <el-table :data="userList" border stripe>
            <el-table-column type="index"></el-table-column>
            <el-table-column label="姓名" prop="username"></el-table-column>
            <el-table-column label="邮箱" prop="email"></el-table-column>
            <el-table-column label="电话" prop="mobile"></el-table-column>
            <el-table-column label="角色" prop="role_name"></el-table-column>
            <el-table-column label="状态">
                <!-- 作用域插槽的使用   slot-scope = "scope"可以拿到作用域的数据 scope.row可以拿到当前行的数据-->
                <template slot-scope="scope">
                    <el-switch v-model="scope.row.mg_state" @change="userstatechange(scope.row)">
                    </el-switch>
                </template>
            </el-table-column>
            <el-table-column label="操作" width="180px">
                <template slot-scope="scope">
                    <el-button icon="el-icon-edit" type="primary" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                    <el-button icon="el-icon-delete" type="danger" size="mini" @click="removeUserById(scope.row.id)" ></el-button>
                    <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false"  >
                        <el-button icon="el-icon-setting" type="warning" size="mini" @click="setRoles(scope.row)"></el-button>
                    </el-tooltip>
                </template>
            </el-table-column>
        </el-table>
        <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum" :page-sizes="[1,2,5,10]" :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper" :total="total">
        </el-pagination>
        <!-- 添加用户的对话框 -->
        <el-dialog title="添加用户" :visible.sync="addDialogVisible" @close="adddialogClosed" >
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮  箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手  机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
        <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户对话框 -->
        <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email"> 
                    <el-input v-model="editForm.email" ></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="editForm.mobile" ></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>
        <el-dialog title="修改角色" :visible.sync="setRolesDialogVisible" width="50%" @close="setRolesDialogClosed">
            <div>
                <p>当前的用户：{{userInfo.username}}</p>
                <p>当前的角色：{{userInfo.role_name}}</p> 
                <p>分配新角色：
                    <el-select v-model="selectedRoleId" placeholder="请选择">
                        <!-- 会将 :value保存到selectedRoleId -->
                        <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">

                        </el-option>
                    </el-select>
                </p>
            </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRolesDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleId">确 定</el-button>
            </span>
        </el-dialog>


    </el-card>
  </div>
</template>

<script>
export default {
    data() {
        // var checkEmail = (rule,value,cb) => {
        //     var reg = /^1[0-9]{10}$/
        //     if(!reg.test(value)) {
        //         return cb()
        //     }else{
        //         cb(new Error('请输入合法的邮箱'))
        //     }    
        // }
        // var checkMobile = (rule,value,cb) => {
        //     var regEmail = /^[A-Za-zd]+([-_.][A-Za-zd]+)*@([A-Za-zd]+[-.])+[A-Za-zd]{2,5}$/
        //     if(regEmail.test(value)) {
        //         return cb()
        //     }else{
        //         cb(new Error('请输入合法的手机号'))
        //     }
        // }
        return {
            // 获取用户列表的参数对象
            queryInfo:{
                query:'',
                pagenum:1,
                pagesize:2
            },
            userList:[],
            total:0,
            // 控制添加用户对话框的显示与隐藏
            addDialogVisible:false,
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            addFormRules:{
                username:[
                    {required:true,message:'请输入用户名称',trigger:'blur'},
                    {min:3,max:10,message:'用户名的长度在3 到 10之间',trigger:'blur'}
                ],
                password:[
                    {required:true,message:'请输入密码',trigger:'blur'},
                    {min:6,max:15,message:'用户名的长度在6 到 15之间',trigger:'blur'}
                ],
                email:[
                    {required:true,message:'请输入邮箱',trigger:'blur'},
                    // {validator:checkEmail,trigger:'blur'}
                ],
                mobile:[
                    {required:true,message:'请输入手机号码',trigger:'blur'},
                    // {validator:checkMobile,trigger:'blur'}
                    // vilidator指定具体的校验规则
                ]  
            },
            editDialogVisible:false,
            editForm:{},
            editFormRules:{
                email:[
                    {required:true,message:'请输入邮箱',trigger:'blur'},
                    // {validator:checkEmail,trigger:'blur'}
                ],
                mobile:[
                    {required:true,message:'请输入手机号码',trigger:'blur'},
                    // {validator:checkMobile,trigger:'blur'}
                    // vilidator指定具体的校验规则
                ]  
            },
            setRolesDialogVisible:false,
            userInfo:{},
            rolesList:[],
            selectedRoleId:''
        }
    },
    created() {
        this.getUserList()
    },
    methods:{
        async getUserList() {
            const {data:res} = await this.$http.get('users',{params:this.queryInfo})
            if(res.meta.status !== 200) return this.$message.error('用户用户数据失败')
            this.userList = res.data.users
            this.total = res.data.total
        },
        // pagesize改变或者pagenum改变，我们就将当定的数据源修改，然后发起新的数据请求
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        handleCurrentChange(newpage) {
            this.queryInfo.pagenum = newpage
            this.getUserList()
        },
        // 监听switch开关状态的改变
        async userstatechange(userinfo) {
            const {data:res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
            if(res.meta.status !== 200) {
                userinfo.mg_state = !userinfo.mg_state
                return this.$message.error('更新用户状态失败')
            }
            this.$message.success('更新用户状态成功')


        },
        // 监听添加用户的对话框关闭事件
        adddialogClosed() {
            // 重置表单项
            this.$refs.addFormRef.resetFields()
        },
        addUser() {
            this.$refs.addFormRef.validate(async valid => {
                if(!valid) return
                const {data:res}  = await this.$http.post('users',this.addForm)
                if(res.meta.status !== 201) {
                    this.$message.error('添加用户失败')
                }
                this.$message.success('添加用户成功')
                this.addDialogVisible = false
                this.getUserList()
            })
        },
        // 展示编辑用户的对话框
        async showEditDialog(userinfoId) {
            const {data:res} = await this.$http.get('users/' + userinfoId )
            if(res.meta.status !== 200) {
                return this.$message.error('查询用户信息失败')
            }
            this.editForm = res.data
            this.editDialogVisible = true
        },
        editDialogClosed() {
            this.$refs.editFormRef.resetFields()
        },
        editUserInfo() {
            this.$refs.editFormRef.validate(async valid => {
                if(!valid) return
                const {data:res} = await this.$http.put('users/'+ this.editForm.id,{
                    email:this.editForm.email,
                    mobile:this.editForm.mobile
                })
                if(res.meta.status !== 200) {
                    return this.$message.error('修改用户信息失败')
                }
                this.editDialogVisible = false
                this.getUserList()
                this.$message.success('修改用户信息失败')
            })
        },
        async removeUserById(id) {
            // 弹框询问用户是否删除函数
            const comfirmResult =  await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => err)
            // 如果用户确认删除，则返回值为字符串 如果用户取消了删除，则返回值为字符串cancel
            if(comfirmResult !== 'confirm') {
                return this.$message.info('已经取消删除')
            }
            const {data:res} =  await this.$http.delete('users/' + id)
            if(res.meta.status !== 200) {
                return this.$message.error('删除用户失败')
            }
            this.$message.success('删除用户成功')
            this.getUserList()
        },
        async setRoles(rolesinfo) {
            this.userInfo = rolesinfo
            // 获取所有角色列表
            const {data:res} = await this.$http.get('roles')
            if(res.meta.status !== 200) {
                return this.$message.error('获取角色列表失败')
            }
            this.rolesList = res.data
            this.setRolesDialogVisible = true

        },
        async saveRoleId() {
            if(!this.selectedRoleId) {
                return this.$message.error('请选择要分配的角色')
            }
            const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
            if(res.meta.status !== 200) {
                return this.$message.error('更新用户角色失败')
            }
            this.$message.success('更新用户角色成功')
            this.getUserList()
            this.setRolesDialogVisible = false
        },
        setRolesDialogClosed() {
            this.selectedRoleId = ''
            this.userInfo = {}
        }
    }
}
</script>

<style>
.el-table{
    margin-top: 15px;
    font-size: 12px;
}
</style>